사용이유 To prevent man-in-the-middle attacks, each SSH server has a unique identifying code, called a host key. These keys prevent a server from forging another server’s key. If you connect to a server for the first time or if the server presets a different key then previously, WinSCP will prompt you to verify the key.RSAAuthentication yesRSA 인증을 설정. Protocol 1 에 적용